Air Vent Flow Split Control for Quiet, Low-Dust Directional Airflow
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Solution Overview
Problem
Existing air vents lack efficient control over airflow direction and are prone to dust accumulation, making them difficult to clean and maintain, while also generating noise due to mechanical components.
Innovation Solution
An air vent design featuring a movable wing within the housing that adjusts the ratio of air volume flows through symmetrical air channels, minimizing visible components and reducing air resistance, with a streamlined transition and bulges to enhance airflow directionality and laminar properties, and includes a manipulator system for precise airflow control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If visible wings are used to control airflow direction, then airflow direction control is achieved, but dust accumulation increases and cleaning becomes difficult
Solution Approach 1:
The patent extracts the airflow control function from visible external wings and relocates it to internal symmetrical air channels. The air channels are formed within the housing structure, removing the need for external visible wings that would accumulate dust. The airflow direction is controlled by adjusting the volume flow ratio between the two symmetrical channels rather than using visible deflecting wings.
Solution Approach 2:
The air channels are nested within the housing structure itself, with the symmetrical channels formed by the housing walls and air-conveying elements. This nesting integrates the airflow control function into the housing structure, eliminating the need for separate external wing components that would be visible and prone to dust accumulation.
2Measurement precision
If multiple mechanical components are used for airflow control, then precise control is achieved, but noise increases and structure becomes complex
Solution Approach 1:
The patent uses pneumatic control through symmetrical air channels and volume flow adjustment rather than mechanical moving parts. The airflow direction is controlled by adjusting the volume flow ratio between the two channels, eliminating the need for mechanical wings or actuators that would generate noise. The air-conveying element with symmetrical surfaces creates the channels, and flow control is achieved through pressure and volume flow management.
Solution Approach 2:
The housing structure serves multiple functions: it forms the symmetrical air channels, provides structural support, and eliminates the need for separate mechanical control components. The air-conveying element also serves dual purposes by defining both channels while enabling volume flow adjustment, reducing the overall number of mechanical parts and associated noise.
3Shape
If symmetrical air channels are used to control airflow direction, then visible components are minimized, but manufacturing precision requirements increase
Solution Approach 1:
While the overall channel structure is symmetrical, the patent introduces asymmetry through the air-conveying element that can be adjusted to change volume flow ratios. This controlled asymmetry in flow distribution allows directional control while maintaining the symmetrical external housing structure, balancing manufacturing feasibility with functional requirements.
4Device complexity
If a single movable wing is used in the air channel, then structure is simplified and stability improved, but airflow resistance may increase
Solution Approach 1:
The air-conveying element features a streamlined, curved cross-section that transitions smoothly between the two air channels. This curved geometry reduces flow separation and turbulence compared to sharp-edged wing structures, minimizing energy loss while maintaining structural simplicity. The smooth transitions in the air channels further reduce resistance.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The air vent provides controlled airflow direction without visible wings, reduces dust accumulation, minimizes noise, and simplifies cleaning by minimizing mechanical components and air resistance, while maintaining stability and directional airflow characteristics.
Implementation Method 1
the first air channel is configured to transport to the air discharge opening a first volume flow of air that can flow into the housing through the air inlet opening, wherein the second air channel is configured to transport to the air discharge opening a second volume flow of air
Implementation Method 2
a first wing, wherein the first wing is arranged movably on the end of the air-conveying element facing the air inlet opening, wherein the movability of the first wing is configured such that the ratio of first volume flow to second volume flow can be adjusted on account of the position of the first wing
Implementation Method 3
The nozzle housing and the air-conveying element are configured to produce the Coand{hacek over (a)} effect, such that a directed air jet exits from the air discharge opening
Data Source
AI summary
An air vent is provided having a housing, an air inlet opening located in the axial direction with respect to the housing and an air discharge opening opposite the air inlet opening, an air-conveying element located in the housing having a first air-conveying surface and a second air-conveying surface, which is opposite the first air-conveying surface, wherein a first air channel is formed by the housing and the first air-conveying surface and a second air channel is formed by the housing and the second air-conveying surface, wherein the first air channel is configured to transport to the air discharge opening a first volume flow of air that can flow into the housing through the air inlet opening, wherein the second air channel is configured to transport to the air discharge opening a second volume flow of air that can flow into the housing through the air inlet opening, and a first wing, wherein the first wing is arranged movably on the end of the air-conveying element facing the air inlet opening, wherein the movability of the first wing is configured such that the ratio of first volume flow to second volume flow can be adjusted on account of the position of the first wing, wherein the second air-conveying surface may be symmetrical with respect to the first air-conveying surface.